2-96761033-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_020184.4(CNNM4):ā€‹c.34G>Cā€‹(p.Gly12Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000938 in 1,066,032 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G12C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)
Exomes š‘“: 9.4e-7 ( 0 hom. )

Consequence

CNNM4
NM_020184.4 missense

Scores

2
2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.49
Variant links:
Genes affected
CNNM4 (HGNC:105): (cyclin and CBS domain divalent metal cation transport mediator 4) This gene encodes a member of the ancient conserved domain containing protein family. Members of this protein family contain a cyclin box motif and have structural similarity to the cyclins. The encoded protein may play a role in metal ion transport. Mutations in this gene are associated with Jalili syndrome which consists of cone-rod dystrophy and amelogenesis imperfecta. [provided by RefSeq, Feb 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.34005547).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CNNM4NM_020184.4 linkuse as main transcriptc.34G>C p.Gly12Arg missense_variant 1/7 ENST00000377075.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CNNM4ENST00000377075.3 linkuse as main transcriptc.34G>C p.Gly12Arg missense_variant 1/71 NM_020184.4 P1Q6P4Q7-1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
9.38e-7
AC:
1
AN:
1066032
Hom.:
0
Cov.:
31
AF XY:
0.00000199
AC XY:
1
AN XY:
503418
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000110
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeJun 14, 2022In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with CNNM4-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the gnomAD database. This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 12 of the CNNM4 protein (p.Gly12Arg). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Uncertain
0.021
T
BayesDel_noAF
Benign
-0.21
CADD
Benign
16
DANN
Benign
0.87
DEOGEN2
Benign
0.026
T
Eigen
Benign
-0.54
Eigen_PC
Benign
-0.59
FATHMM_MKL
Benign
0.42
N
LIST_S2
Benign
0.45
T
M_CAP
Pathogenic
0.79
D
MetaRNN
Benign
0.34
T
MetaSVM
Benign
-0.89
T
MutationAssessor
Benign
1.7
L
MutationTaster
Benign
1.0
N
PrimateAI
Pathogenic
0.87
D
PROVEAN
Benign
-0.35
N
REVEL
Benign
0.10
Sift
Benign
0.16
T
Sift4G
Uncertain
0.060
T
Polyphen
0.43
B
Vest4
0.35
MutPred
0.29
Gain of MoRF binding (P = 0.0035);
MVP
0.66
MPC
1.2
ClinPred
0.18
T
GERP RS
1.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.0
Varity_R
0.084
gMVP
0.43

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-97426770; API